UNC — Unified Coarse Thread (UNC Thread ANSI B1.1)
Унифицированная крупная резьба
| Типоразмер | Наружный диаметр, мм | Диаметр сверления, мм | Число витков на дюйм | Шаг, мм |
|---|---|---|---|---|
| N 1 - 64 UNC | 1.854 | 1.5 | 64 | 0.397 |
| N 2 - 56 UNC | 2.184 | 1.8 | 56 | 0.453 |
| N 3 - 48 UNC | 2.515 | 2.1 | 48 | 0.529 |
| N 4 - 40 UNC | 2.845 | 2.35 | 40 | 0.635 |
| N 5 - 40 UNC | 3.175 | 2.65 | 40 | 0.635 |
| N 6 - 32 UNC | 3.505 | 2.85 | 32 | 0.794 |
| N 8 - 32 UNC | 4.166 | 3.5 | 32 | 0.794 |
| N 10 - 24 UNC | 4.826 | 4 | 24 | 1.058 |
| N 12 - 24 UNC | 5.486 | 4.65 | 24 | 1.058 |
| 1/4" - 20 UNC | 6.35 | 5.35 | 20 | 1.27 |
| 5/16" - 18 UNC | 7.938 | 6.8 | 18 | 1.411 |
| 3/8" - 16 UNC | 9.525 | 8.25 | 16 | 1.587 |
| 7/16" - 14 UNC | 11.112 | 9.65 | 14 | 1.814 |
| 1/2" - 13 UNC | 12.7 | 11.15 | 13 | 1.954 |
| 9/16" - 12 UNC | 14.288 | 12.6 | 12 | 2.117 |
| 5/8" - 11 UNC | 15.875 | 14.05 | 11 | 2.309 |
| 3/4" - 10 UNC | 19.05 | 17 | 10 | 2.54 |
| 7/8" - 9 UNC | 22.225 | 20 | 9 | 2.822 |
| 1" - 8 UNC | 25.4 | 22.25 | 8 | 3.175 |
| 1 1/8" - 7 UNC | 28.575 | 25.65 | 7 | 3.628 |
| 1 1/4" - 7 UNC | 31.75 | 28.85 | 7 | 3.628 |
| 1 3/8" - 6 UNC | 34.925 | 31.55 | 6 | 4.233 |
| 1 1/2" - 6 UNC | 38.1 | 34.7 | 6 | 4.233 |
| 1 3/4" - 5 UNC | 44.45 | 40.4 | 5 | 5.08 |
| 2" - 4 1/2 UNC | 50.8 | 46.3 | 4.5 | 5.644 |
| 2 1/4" - 4 1/2 UNC | 57.15 | 52.65 | 4.5 | 5.644 |
| 2 1/2" - 4 UNC | 63.5 | 58.5 | 4 | 6.35 |
| 2 3/4" - 4 UNC | 69.85 | 64.75 | 4 | 6.35 |
| 3" - 4 UNC | 76.2 | 71.1 | 4 | 6.35 |
| 3 1/4" - 4 UNC | 82.55 | 77.45 | 4 | 6.35 |
| 3 1/2" - 4 UNC | 88.9 | 83.8 | 4 | 6.35 |
| 3 3/4" - 4 UNC | 95.25 | 90.15 | 4 | 6.35 |
| 4" - 4 UNC | 101.6 | 96.5 | 4 | 6.35 |
UNF — Unified National Fine Thread (UNF Thread ANSI B1.1)
Унифицированная мелкая резьба
Типоразмер | Наружный диаметр, мм | Диаметр сверления, мм | Чило витков на дюйм | Шаг, мм |
|---|---|---|---|---|
| N 0 - 80 UNF | 1.524 | 1.25 | 80 | 0.317 |
| N 1 - 72 UNF | 1.854 | 1.55 | 72 | 0.353 |
| N 2 - 64 UNF | 2.184 | 1.9 | 64 | 0.397 |
| N 3 - 56 UNF | 2.515 | 2.15 | 56 | 0.453 |
| N 4 - 48 UNF | 2.845 | 2.4 | 48 | 0.529 |
| N 5 - 44 UNF | 3.175 | 2.7 | 44 | 0.577 |
| N 6 - 40 UNF | 3.505 | 2.95 | 40 | 0.635 |
| N 8 - 36 UNF | 4.166 | 3.5 | 36 | 0.705 |
| N 10 - 32 UNF | 4.826 | 4.1 | 32 | 0.794 |
| N 12 - 28 UNF | 5.486 | 4.7 | 28 | 0.907 |
| 1/4" - 28 UNF | 6.35 | 5.5 | 28 | 0.907 |
| 5/16" - 24 UNF | 7.938 | 6.9 | 24 | 1.058 |
| 3/8" - 24 UNF | 9.525 | 8.5 | 24 | 1.058 |
| 7/16" - 20 UNF | 11.112 | 9.9 | 20 | 1.27 |
| 1/2" - 20 UNF | 12.7 | 11.5 | 20 | 1.27 |
| 9/16" - 18 UNF | 14.288 | 12.9 | 18 | 1.411 |
| 5/8" - 18 UNF | 15.875 | 14.5 | 18 | 1.411 |
| 3/4" - 16 UNF | 19.05 | 17.5 | 16 | 1.587 |
| 7/8" - 14 UNF | 22.225 | 20.4 | 14 | 1.814 |
| 1" - 12 UNF | 25.4 | 23.25 | 12 | 2.117 |
| 1 1/8" - 12 UNF | 28.575 | 26.5 | 12 | 2.117 |
| 1 1/4" - 12 UNF | 31.75 | 29.5 | 12 | 2.117 |
| 1 3/8" - 12 UNF | 34.925 | 32.75 | 12 | 2.117 |
| 1 1/2" - 12 UNF | 38.1 | 36 | 12 | 2.117 |
